Tree-measuring device.



G. A. GUN.

TREE MEASURING DEVICE.

APPUCATIOH man AUGJO. 1911.

\ 274,3 1 5. V Patented July 30, 1918.

T115 j J g a 51mm Gaze; .14. 02a):

v Wa drawings which form UNITED STATES PATEN 1 OFFICE.

GILES A. OLIN. OF SILE'IZ, OREGON.

TREE-MEASURING DEVICE.

Application filed August 20, 1917.

To all whom it may concern: 7

Be it known that l, ('ilLEH A. Jun, :1 citi-- zen of the United States, residing at Siletz, in the county of Lincoln and State of Uregon, have invented certain new and useful Improvements in 'lree-hleasuring Devices; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to Which it appertaius to make and use the same.

My invention has for its object to provide a simple and inexpensive yet a highly elficient and durable ii'xstrmnent for flQlfllIHilP ing the number of logs oi. a predetermined length, which may be out from any tree, and for measuring the diameter of such logs.

With the foregoing general object. in view, the invention resides in the novel features of construction and unique combina tions of parts to he hereimitler fully described and claimed, the descriptive matter being supplemented by the accompanying a part of this speciii cation and in which Figure 1 is av side elevation proved instrument in use;

Fig. 2 is an enlarged. side elevation with the slide partly in vertical section; and

ig. 3 is a vertical transverse section on the plane indicated by the line 3---3 of Fi 2.

n the drawings above briefly described, the numeral 1 designates a straight bar pref erably formed of hard wood and bound at its ends by suitable ferrules 2 which will in most cases be constructed of brass. Mounted upon the bar 1 is a slide 3 which is also by preference formed of brass although any other preferred material could well be our ployed, said slide havin on its upper face a sight plate 4 having a sight opening 5 through which the user sights at the top of the tree when the butt or rear end of the bar 1 is ositioned against his check as shown in *ig. 1. In using the device the operator must stand a distance of 50 feet from the tree on a horizontal or baseline.

By positioning the rear end of the slide 3 upon the transverse line 6 adjacent the rear end of the bar 1, and sighting through the sight opening 5 at the top of the tree, a pointer 7 which is pivotally mounted on one side of said slide, will coact with a scale 8 of the inr- Specification f Letters Patent.

Patented July 30, 1918. Serial No. 187,315.

in showing the number of ogs of a predetermined length which mayvbe sawed from the tree. The pointer 7 will in most cases be housed in a suitable glass covered casing 9 and may be removed with the slide when not in use and carried in a leather case or the like so that injury thereof will be prevented.

After determining the number of logs which can be gotten from the tree, the diameter of the logs may be determined by shifting the slide 3 along the bar 1 until the full width of the particular lo to be measured visible through the sigl it opening 5, this adjustment being made without varying the inclination of the bar. The diameter of the log is shown by a scale 10 formed on one side of the bar 1 the members of said scale representing diameters in inches, and being readable in connection with the rear end of the slide.

From the foregoing, taken in connection with the accompanying drawing, it will be obvious that I have devised an extremely simple and inexpensive, yet a highly efficient and durable instrument of the class described which may well be used by unskilled persons. Since probabl the best results are obtained by the speci 1c features of construction shown and described,- such features constitute the preferred form of my invention. 1 wish it understood, however, that within the scope of the claimed invention, numerous minor changes may well be made without sacrificing the principal advantages.

I claim z- 1. In an instrument for determining the number of logs in a. tree and measuring the diameter of the same, the combination of a bar, a slide mounted on said bar and having a sight opening through which the user sights at the upper portion of the tree, means on said slide operable by tilting of said her for showing the number of logs in the tree, and means on said bar for coaction with said slide in showing the diameter of such logs when said slide is shifted alon the bar, without varying the inclination o the latter, until the entire width of said log is visible through said sight opening.

2. A tree measuring device comprising a bar, a slide mounted thereon and having a sight opening through which the user sights at an, evated point on the-tree, and'means 011 said [my 1'01 mnuling wHh mid slide in my hum] in [he prust'nuu uf lwu subscribing Imwmg Hm dnnnolor of the [we at the ele- \vltnusses. \"ution of Hllld pulni, when said slldu 1s 1 moved ulung 1110 bur, without moving the (11mm (HAN 6 latter, until 11w until-u \v'nHh 01; the tram is \Nitnesaus:

\isiblv through said sighi opening. \V. S. ALL,

111 L(btill'l01l)' whereof l have hereunto set W. R. .HALL, 

